Too much of something can be bad, but too little can also be bad. We examine the influence of carbon dioxide in earth’s atmosphere. Scientists seem conflicted about CO2 (carbon dioxide). It gets blamed for all kinds of bad things, but with few exceptions, every living thing either takes it in or gives it off. […]

Some very small organisms can produce global effects, such as the tiny crustaceans that stir the oceans every night. What would the oceans be like without life? If minerals, gases and nutrients had to mix by diffusion, the process would be very slow. Wind and currents could help somewhat. Now, Houghton et al., publishing in […]